I need a Gantt chart or similar timetable briefly outlining what & when you will be doing, and more description on the process you will be following to complete these tasks. E.g. Pre-degradation characterisation (like the PIVs ) > Device degradation & periodic measurements > Data analysis (what methods will you use, and what properties will you examine - threshold currents etc).

PXT992 Advanced Study and Research Skills Research Project Pitch (Poster) Assessment summary and instructions Criteria: 5 Marks: 100 Assessment: Your submission will be assessed against explicitly the stated assessment criteria Submission: Please upload your poster document in its native file format to the OneDrive folder corresponding to your PXT992 group. To be clear, this is an individual submission, but the files are being grouped together on OneDrive for logistical purposes. Marks available 1 Presentation and clarity of the poster document 20 2 Demonstration of purpose 20 3 Effective presentation of the scientific background and wider scientific context 20 Effective presentation of the proposed research project methodology 20 5 Effective presentation of the proposed research project structure 20 Cardiff University School of Physics and Astronomy PXT992 Advanced Study and Research Skills Research Project Pitch (Poster) Summary The ability to summarise academic research or a research plan in a succinct and compact form is an essential skill for practising scientists. Posters, short talks, and videos are common formats for this kind of communication. As part of this module's Virtual Conference, you are required to pitch your research plan in the form of either a poster or a short video. This script covers the requirements for poster submissions. Please remember that this exercise is a pitch. This is a slightly different form of presentation compared to summaries and reports. You are expected to be able to convince the audience of the value and achievability of your proposed research project You should consider carefully your experience with generating posters and videos from your activities on the MSc and more widely. You should choose the format which aligns most strongly with your skillset. There is no "preferred" submission format - it is possible to score full marks for either a poster or a video if the assessment criteria are met to the required standard. Submission requirements Poster document You must generate a single page document in a 16:9 ratio and with landscape orientation. Poster document You must generate a single page document in a 1 6:9 ratio and with landscape orientation. The poster must be comfortably viewable at A1 size and a viewing distance of 1 metre. The layout of the poster is up to you. Consider carefully the best Lise of space. The posters content need not be static Animations and other dynamic content are permitted. The tone of the poster must be formal and scientific. Cardiff University school of Physics and Astronomy PXT992 Advanced Study and Research Skills Research Project Pitch (Poster) Assessrmtoria Criterion 1': presentation and clarity of the poster document The poster document must effectively communicate the important aspects of your research project plan and convince the audience of the value and achievability of you proposed research project as a standalone submission. Remember that there will be no opportunity to respond to questions. Ensure that your poster document: Clearly displays the proposed research project title, your name, and you' affiliations. ls implemented as a single page 16:9 aspect ratio document in landscape orientation which is clearly readable at A1 size at a viewing distance of 1 metre, Clearly and concisely describes the scientific background to the proposed research project. Establishes the proposed research project in the wider scientific context. Clearly and concisely describes the proposed research project methodology. Clearly presents and summarises the main points of the proposed research project structure. Uses formal scientic English throughout, with effective use of graphs. images, animations, etc, as appropriate to the topic of the micro project. Criterion 2: demonstration of purpose The poster document taken as a whole shoutd cleady demonstrate the research projects purpose. Ensure that you state a clear and succinct set of research questions which motivate the research project. It is strongly recommended that you present a hierarchically-structured set of aims and objectives. Note that you are not expected to go into the same level of detail as the written project plan; the poster should contain only the most important points. Criterion 3: e'ective presentation of the scientic background and wider scientic context The poster document should summarise the scientic context in order tojustify the project as worthwhile and to provide motivation for the project's viability. You should include some critical appraisal of the uncertainties i difficulties I risks associated with the proposed project in light of the established literature. Note that you are not expected to go into the same level of detail as the written project plan; the poster should contain only the most impoi1ant poian. Criterion 4: effective presentation of the proposed research project methodology The poster document should summarise the proposed research project methodology. Note that you are not expected to go into the same level of detail as the written project plan: the poster should contain only the most important points. Criterion 5: effective presentation of the proposed research project structure The poster document should summarise proposed activities. major milestones and possible branching points. The research project structure should clearly and unambiguously address the research questions. You should include some critical discussion of practical considerations. the timing and dependency of activities. and major logistical risks. Note that you are not expected to go into the same level of detail as the written project plan: the poster should contain only the most important points. Cardiff University School of Physics and Astronomy Characterisation of Antimony Containing Type-II Superlattices Grown Via MOCVD For Infrared Detection Richard Brown Cardiff University Abstract Type-II Superlattices MOCVD Growth of Antimony The Project - Characterisation of T2SL Samples Infrared devices play an importantrole in cutting edge applications The type-ll superlattice (T251) was first discovered in 1977 and was published in the Up until this point, antimony containing TaSLs have mostly been produced via The project can be broken down into 3 aims; including high-speed data communication, Light Detection and Ranging sominal paper from the IBM T. ) Watson Research Center. A suporlattice is a molecular beam epitaxy [MBE) This is due to the ability of MBE to produce very pure, . Characterisation training (UDAR), thermal imaging and biomedical sensing. In order to improve structure in which altamating layers of semiconductor are stacked on top of each atomically sharp and precisaly thick growth layers. However, MBE is low and . Characterising the samples device performance for these and other vital tachnologins new materials other creating a structure that acts like a "bulk" material with its own band gap based expansive and so if antimony containing Tests are to become the mainstream . Proposing improvements and imcording findings must be developed to overcome the weaknesses of the currently used on its stack structure. A T251 consists of a bilayer semiconductor stack where the replacement to bulk HyEdTe a different growth method is required. The most technology Antimony based type-I superlattice (T25L| materials and a conduction band (CB) of the superlattice is found in material and the valence band common growth technique in industry is metalorganic chemical vapour phase In order to optimise both the growth and design of these antimony containing T25Ls grown strong candidate for next generation infrared technologies due to IVE) is in the other. deposition [MOCVD] due to its high speed and lower cost when compared to MBE. by MOCVD, samples produced must be characterised. Many different parameters can be advantageous material proparties and flexible band engineering. However, Go, the natural transition for antimony containing T25Ls would be transferring from characterised but the most useful parameters in this case break down into 3 sub-groups: the main problem with any antimony containing material including T25Ls MEE to MDCVD when moving to large scale production as is common with other surface, intomal structure and the optical properties In order to characterisa these and in its transition to commercialisation. Andmom is able to baireliably compound-samiconductors. parameters different techniques are used. Atomic force microscopy is able to characterisa the grown via the slow and expensive molecular beam epitaxy method buthas surface roughness and morphology of a sample. X-ray diffraction is able to characterisa tha not yet boar reliably and commercially growin via the much cheaper and MDCVD growth of antimony is difficult due to; material composition of the sample as well as measure its strain and lattice thickness. scalable metalorganic chemical vapour deposition (MDCVO| method. Conduction . Its low melting point Photoluminescence techniques can than be used to measure the optical properties of a Therefore, developing and improving the MOCUD growth of antimony will miniband Low equilibrium vapour pressure device. solve a key manufacturing challenge and may allow antimony based T25Ls Heavy-hole . Lack of a stable hydride to be used as a precursor gas to become the mainstream infrared devices, massively improving the miniband This project will utilise those 3 characterisation techniques in order to understand why test current infrared technology and allowing for further device laval innovation The low melting point of antimony based semiconductors limits the temperatures samples of antimony containing T2SLs behave the way they do and to optimise their design due to its superior material characteristics. This project aims to analyse that can be used in MOCVD. Many of the normal chemicals used in MOCVD need to and growth for future iterations. samples of antimony based T25Ls grown via MOCVD in order to propose be heated up to high tamparatures in order to fully decompose and prevent improvements in the design and growth. is mocaned by wooed anow (3) impurities entering the sample. Therefore, new chemicals need to be developed Conclusion specifically for this lower temperature MOCVD. The separation of the bands between the two materials of the superlattice means Improvement in our infrared device capabilities is vital for the development of modern sociaty Infrared sensing applications the positions of the conduction band and valance band can be tuned independently The low aquil brium wapor pressure of antimony is another major difficulty as it and that joumey starts at the material level. The antimony based type-II suparlattice is a vary This allows for a very high degree of band engineering. The band gap of the TESL can causes antimony crystals to form if the ratio of the group-II and group-V sources is promising material sat to reshape the world of infrared sensing, once manufacturing be made smaller than the band gap of the individual semiconductor material making not accurately maintained, as shown in figure (4). constraints are overcome. So research into the design and growth of this material is up the layers allowing for long wavelength applications such as infrared paramount to facilitate futuristic technologies such as soll driving cars as well as improving cumant technologies such as optical data communication. Sponsors and Supporting Parties CARDIFF Institute for Compound UNIVERSITY Semiconductor PRIFTICOL Setydliad ar parter Lied-ddargludyddion Cyfansawdd Figure It! - Fitore opbe convocation hangers cata wa whang IQE EPSRC Engineering and Physical Sciences Each bywe can be seen as the stripes to the structure for Research Council Bulk Mercury Cadmium Telluride [Hy[dTe] is the traditional material used for infrared References dabaction. However, this material has many drawbacks including cost, issues with uniformity and high levels of dark current. Antimony based T25Ls have been 17] Fiber Optic Technology: Introducing High-Speed Duin Exchange', FindLight Ing, Oct. 03, 2013. proposed as a replacement to HyCdTe due to their advantageous material proportion when compared to HgCdTa, in particular their reduced dark current. Dark current 3 The king to LOAR witty', Fascinating workon about Innowathis upacid glam - SCHOTT Innaction, May , 2060. The lack of a stable hydride of antimony means that other precursor gases must be must be reduced in order to achique high performance infrared detection. A large used. Trimethylstibing (TMSb) is commonly used as the antimony precursor. 1310.2-Y. Tingstal, Chapter 1- Type-II Superlative Infrared Devician', In Semiconductors and Semimetals, vol. proportion of the dark current in bulk HgodTe is caused by band to band tunneling. However, TMSb can incorporate carbon into the sample and so ways to mitigate this Is, 5. D. Gurupala, D. R. Ahiper, and [. Jagadish, Eds. Elsevier, 301 1, p. 1-53. Auger recombination and Shockley-read-Hall recombination. These recombination incorporation, such as the use of active hydrogen, are currently being researched. fanselectronics [second Edition), R. Town, lid. Landor Thevier, 3011, Figure (3 - LIDAR is an essential technologyin self doing cars as processes can be reduced by using a T251 causing TZSLs to have lower dark currants PR 1-56. 1513. M. Blofeld, 'The metal-organic chemical vapor depositan and proportion of lil-V antimany-based than bulk materials which leads to higher performance. uteriah', Mutin. 5d. Eng. R Am, wal 16, rea App. 105-142, Ma 3603403 03002-5